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Abstract
House dust mite (HDM) feces and molds are the main allergens involved in allergic asthma. Differences exist between the housing fungal biome of allergic patients and standard or unhealthy housing. House dust mite (HDM) feed off spores and transport them on their bodies, but do they have fungal food preferences? We observed Dermatophagoïdes farinae in vitro with 16 mold menus and repeated the experiment 10 times. This observation led us to define Alternaria alternata, Cladosporium sphaerospermum, and Wallemia sebi as “tasty” molds and Penicillium chrysogenum, Aspergillus versicolor, and Stachybotrys chartarum as “repulsive” molds. The food preferences of D. farinae may play a role in the following two phenomena: a decrease in spore numbers due to HDM consumption and a scattering of spores that stick to the bodies of HDMs. The extent of these two phenomena should be estimated in future studies for other common domestic HDM species.